Your physician is referring to the different molecular markers that your specific tumor may contain. Determining those "mutations" allow your physician to develop a more individualized treatment plan based on your specific tumor. This allows for the use of possible "targeted therapies".

Sep 25, 2014 - A test used to diagnose lung cancer may not be as reliable in geographic regions where certain lung infections are more common, according to research published in the Sept. 24 issue of the Journal of the American Medical Association.